The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
Mar. 31, 2009
Masaaki Onodera, Kanagawa, JP;
Takehiko Sumi, Kanagawa, JP;
Teruo Tamada, Kanagawa, JP;
Yu Igarashi, Kanagawa, JP;
Yoshinori Ohno, Kanagawa, JP;
Masaaki Onodera, Kanagawa, JP;
Takehiko Sumi, Kanagawa, JP;
Teruo Tamada, Kanagawa, JP;
Yu Igarashi, Kanagawa, JP;
Yoshinori Ohno, Kanagawa, JP;
Kyoraku Co., Ltd., Kyoto, JP;
Abstract
A blow-molded foam having a wall portion formed in such a manner that a thermoplastic resin containing a foaming agent mixed therewith is subjected to blow molding. Herein, the wall portion has a closed cell structure in which a plurality of foamed cells are contained. The wall portion has an expansion ratio of not less than 2.0 times. The wall portion has an outer face having a center-line average surface roughness Ra of less than 9.0 μm. The foamed cell has a cell diameter having a standard deviation of less than 40 μm in a thickness direction of the wall portion.